Improvement in ventilators



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. 134,401. Patented Dec.31,18.72.

nrrnn srnfrns PHILIP I. SGHOPP, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN VENTILATORS.

To all whom it may concern:

Be it known that I, PHILIP I. Sonori), of Louisville, in the county of J efierson and State of Kentucky, have invented certain Improvements in Ventilators', of which the following is a specifica-tion:

The iirst part of my invention relates to the combination of an incased screw with a horizontal wind-wheel in such a way as to use the motive power of the latter to set the former in motion, for the purpose of exhausting fromor supplying air to closed apartments, particularly railroad cars. The second part relates to the combination of a peculiarly-constructed movable turret and shield with the wind-wheel and screw, by which only one-halt of the wings of the Wheel will be exposed to the current of the air and the returning win gs protected from the same, thus securing a constant motion in one direction only, to the right or left, as the opening in the turret may indicate.

Figure 1 is a front elevation ot the ventilator facing the current of air. Fig. 2 is a plan of Fig. 1. Fig. 3 is a rear elevation. Fig. 4 is a horizontal section on line E F, Fig. 8, and a plan of the screw. Fig. 5 is a vertical transverse section on line A B, Fig. 2. Fig. 6 is a horizontal section on line C D, Fig. l.

`A is a windwvheel of four or more wings; the wings areA made of sheet-iron and attached to cast-iron'arms c, which are keyed to the spindle a. To the lower end of spindle a screw B (double spiral, right and left) is attached.

This screw is made of sheet metal and riveted or otherwise fastened to spindle a. Spindle a rests in socket b, which is screwed to wroughtiron cross-bars c, resting on projecting brackets of cylinder O. This cylinder C is made of castiron, and provided with a ring or iiange, d, by which it rests and is fastened to the `decking or roof D. The principal office of the cylinder is to receive the screw B, which revolves in it, set in motion by the wind-wheel A. Upon the cylinder C restsv the perforated ring E, intended for the purpose partly to make rooin for the escape or suction of air, partly to form a support for the circular plate F. G is the turret, made of sheet metal. Half of the circle is closed to aii'ord protection to the returning wings of the windwheel A; the other half is open to expose the wings to the striking current of the air. This opening may be to the right or left, either to supply air or ex haust foul air, and have the screw turned correspondingly. The half part of the turret below the wind-wheel, exposed entirely to the the current, is closed, and projecting downward beyond the topline of the screw B, forming a shield, G', around haltl the openings of ring E. The shield will exclude counter currents and permit the free exit of foul air and the undisturbed supply of fresh air, as the case may be. To the inside of the turret four wheels, H, are attached -by means of four arms radiating from a ring which revolves around a templet, X, fastened to circular plate F. To these arms turret Gr is to be screwed. To give support to spindle a crossbars i are attached to the turret by means of angle-irons. To these cross-bars are riveted or screwed diagonal braces I', to which is fastened spindle I. To this spindle is secured the vane or rudder L, constructed large enough to secure the moving of the turret. K is a cap slipped over the turret to keep out the rain and dust, M, a small cap slipped over spindle I for the same purpose.

The whole apparatus is set up in the following manner: First, cylinder G, with cross-bars c and socket b attached, is set upon the root' and the ring E slipped over it; then spindle a,

with screw B, is inserted and circular plate F slipped over it, and rollers set upon the plate; then the wind-wheel A is attached to the spindle a and the turret G placed over it; then cap K is slipped over the turret; and, lastly, vane L attached to spindle I.

The apparatus will operate in the following manner: By means of the vane or rudder L, which is subject to the power of the air current, the turret Gr will be turned upon the plate F, and, as the rudder is on the opposite side ot' the shielded part of the turret, that part will always be turned toward the current, and consequently the current will strike only those wings exposed to it through the open part of the turret, the returning wings being shielded by the closed part. For the same reason shield G will always face the current and protect the opening above the screw. This will secure a motion in the same direction for the wind-wheel and screw. By the revolution of the screw a I claim :is my invention- The combination of the Wind-Wheel A, turret G, plate F, perforated cylinder E, screw B, and spindle a, cylinder C, cap K, and vane L, substantiall y and for the purpose hereinbefore set forth.

Y PHILIP I. SCHOPP.

Witnesses AUGUST STEIN, HERMAN WERNER. 

